Folding and interleaving machine.



A 0. E. T-EALL.

FOLDING AND INTERLEAVING MACHINE.

- .APPLICATION FILED APR. Ie. 1918.

Patented Jan. 7,1919.

I. I e

0.A E. TEALL.

Paten-ted Jn. 7,1919.

a SHEETS-SHEET 2.

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will! QQOLVEE`E TELL, -OE SAUGERTIENPEW YRKASSIGNOR @BOHEME-ALF TTHETISSUE confesar-orfseminaries. new Yoan, A conronaron eFnnW Yoan.

'i 'nonnina snnlmnntnsvinjeMassin-n.

igeeogeei aldapi-al lo l'old papi-i'. napkins and towels` '15.'iind tointcrl `\':xve .such articles soi'lial when a package isplaccd in acontainer the with- `draival ol one lnapkin orlmvrl will bringtrliiy'ndgi-f ol' the following' article into posi "iii'niioilicreadily? extracted 'from the con- `tiiin`i`a".,j1 f'lfh'e'inventioncoinprcliends simple and' inipri'ivedjniechanisin for producing in'terleavcd napkins orftovvels. 'lhc former iii'c ordinarily lirstfo'lldedlengthwise of the ."fced and their transit-,rischi ai' two dill'erentpdinljs. Towels,A 4on the other hand; usually i have only tvvoiolds,both'hcing transverse f Specification of Letters Patent;

"ofy the pape ninas `it is 'fed `from the roll.

According ,to my inventiolnwhen the inay `chine is ased for' folding'napkins, a roll of ,paper is appropriately supported upon a shaft fittedupon the |i'raineworlrof the ina- 'chine and :the web 'is ,led, up overa roller bar superposed on the framework and then ,down vover a vfoldinghorn between a pair of l rollers which con'iplete the/initial fold, andthen between a second pair, of rollers which effect va creasing; of thepaper transverse of the' feed andl in, alternate directions, thecreasingl means of these rolls being-,so dis- 40 posed .that the desiredlength oi'paperv for a napkiniis divided into,threeequal 'porlione,Aseverance ofkcach ,napkin lbeing then effected hy a rotating memberwhich carries a;cutti-ng;b1ade -for coperating `with .astationaigyicuttinginenibclzf 'lll-iefnapkins as c thei/arc severed passloctweenguiding tapes toy ay pair ofrollers `leywhich they are fed `intoakhopper, thetail end of each napkin,

` being;y forcibly Withdrawnflirom engagement .5: 0 withthe guidingtapes While its leading `edge isgin the biteof thezi-'feeding, rollersvso as'- f wtovniakey war` for the next succeeding napkin which is' thentraveling at a speed greater than the speed at which the napkin 1n edbVance is being fed to a hopper. In this Way liins in partlyioldedrposition.

patenten aan, a, ima

`y iAgiplisationl md Apriiielela. seriainoeaaai?.

the advancing ver leading edge of a napkin following` another overtakessuch preceding napkin to, the extent of one-third its length, thusproviding for the tncking of suchadvancingi' or leading' edge Withinkone ofthe folds olf the irst'inij'ikin-n In the adaptation eiiecting`the transverse creases, no'longitudinal foldingof therweb beingrequired.

. 'lhe cutting: of tllefvveb and the interleaving are identical in bpthnapkin andtowel folding. i

.ot paper-isli-id direiztlylto the rollers for 4 f yl'n theaccompanying'drawings, Figure" 1 is 4a vertical longitudinal sectionallview ments. Fie', Qis a rcross*sectional `view on line 2-2,Fig, l. Fig.3 is alperspective view 'of one` of thev pushery bars. is a viewvinperspective showing the nap- Fig. 5vv is a view in perspective showingther gearing for driving the feedrollsnly one oli which is illustrated.,and thecarns foicperating' the clamping.,eety Fig. @is an enlan@edvvertical lmigitndinaly sectional 'View showing the appel-portion olvthe'machine inr position for nseas a'towel` folder, f

At 1 llhave shown a motor adapted' drive. thef several parts of thegmachine through :almachine en'ihodying any-improve# Fig. 4

ythrough the instrumentalityof a pulley 2f on the end 'ci shaft 8 o1thexlietor, the pu1- ley driving abelt-1lV which is connected to a bandpulley 5 supportedy on a. shaft 6 suitablrjonrnaled 'near the upper partof'fthe machine. This shaft carries ay small pinion 7 which l'nesheswith a large gear L8 xed on a y.shaft 9 jornaled in the'franiework ofthe inacliincfWlii-'ch latter l have vindicated at' ilO. On the shalt 9are a seriesgof concen-r tric disks: l1,4 each of which' is notched as.atilQithe` notched portionsfo the several disksfcollectively forming aseat for a knife ledapted to coperatewith laicnt'ting blade 13'?Ifiiledlyfsecuredi to the framework.' these two' cnt tingine'mberssevering the pa'peiin appropriate'napkin or owellengtls as 1t 1spassedftherebetween, a spring-bar 13 pre-4 ventingflany sticking` of the:paper te 'the'v 'xedlcaxnVY v A- gearlt Een thc-"end vof shaft 9 isadapted to mesh with an idler gear 15 on e stub shaft 16, the gear l5driving a vpair of gears 17. 18 on the. ends of two parallel shafts wand20, both of'which and the 'stub shaft ics lill

fait? i6 are journaled ina frame 21 forming part of the main frame ofthe machine. The shafts 19 and 452,0 support the feed rollers Q2 and 23,each of which latter is pro vided with la male and female member 24 .and25, these members extending the full length of the rollers, and beingadapted to crease the paper as itis passed between these rollers. Themembers 24, 25 are so located that the paper passing betweenl therollers will be creased so as to divide the' napkin lengths into threeequal portions.

Mounted on the shaft' 9 between the large gear 8 and the small gear 14is a s rocket wheel QG which drives a. chain 27, he latif" ,support isshown as comprising a bar 34 .having dropped end portions 35 of U-shapeand upwardly curved side members or arms 36, each of which side membershas a. slot .36 at its free end to receive a roller' 37.

These rollers are mounted on stub shafts 38 projecting laterally fromthe frame of the machine and which form a support for the inner ends ofthe frame of the blade carrying member and permit a rocking inovement ofthe frame as it is reciprocated through the connection with the crankshaft 29. This construction produces an undulating movement of the blade30.

The sprocket chain 27 after passing 'around the sprocket wheel 28extends to the opposite side of the machine and engages a sprocket.Wheel 41 on a stub shaft 42 suit ably mounted on the standard B, and isadapted to drive a spurJ gear 43 keyed to the shaft 42. Gear 43 is inmesh with a second spur gear 43 on a crank shaft 44 which is similar inconstruction to the shaft 29. This shaft 44 forms the support for oneend of a support 44 'for a. second folding blade 45 which iscomplementary tothe member The support for this blade includesconnecting rods 45 clamped to cranked portions of the shaft 44 and a bar45 to whichthe inner ends of the rods 45 are connected. Side arms 46extend forwardly from the bar 45" 'and terminate in slotted endswhichare adapted. to receive supporting rollers 39 mounted-v upon laterallyextending stub shafts 40 secured to the freine. The support 44 likev thesupport 33 is adapted to rock uponits supporting shafts 40. Itsconstruction is such that it can be manipulated without in. an yinterfering with its complementary support 33, the sido arms 46 of thesupport 44 lying within the piane of the arms 36;

which are i throw and is adapt-ed to take up the slack of the last cutor severed end of the napkin, thus forcibly' freeing the tail end of thenapkin from guiding tapes as the advancin edge of the napkin is caughtbetween fee ing rollers 48 and 49. These `rollers 48 and 49 are drivenby the sprocket chain 27", en-

gaging a sprocket 50 on the shaft of the roller 48, the roller 49 beingdriven by the gears 51 and 52. The speed at which these feed rollerstravel is less than the speed of the rollers 22, 23 so that a secondnapkin will be speeded up in its feed toward the hopper to overtake thetail end of the advancingnapkin and be interfolded therewith. 53, 54,designate coperating lfeeding tapes which direct the severed portion ofthe paper to the rollers 48 and 49.

.The operation of the machine when adapted to fold paper napkins is asfollows:

A roll 59 of crepe paper is sup orted upon a shaft 60 suitably mounted.in tlie frame of the machine and so arranged iii brackets 61 and 62 asto permit' a lateral shifting for centering by means of a hand screw 63.The web of paper is carried up over a roller bar 64 suitably supportedin brackets 65-66 on :i :,-uperposed frame 67 and thence down over afolding horn 68' which effects the initial folding of the paperlongitudinally of its length, the paper being effectively creased in itspassage between rollers 57 which are positivelyfdriven by sprocket chain27 which engages the sprocket 58 on the shaft of the left handy roller,motion being imparted to the complementary roller by gears 55 -56. Theweb of'paper which is now folded longitudinally of its length is fedbetween roll-k ers 22-23, the series of male and female members 24 and25 of which give toi the paper spaced transverse creases first to oneside then to the other. The paper so creased then passes the diskssupporting the cutting blade i3 and is severed in appropriate lengths bythe blade 13 A(zo-acting vwith the cutting member 13 the severed sheetspassing on to the feeding tapes 53-54 which direct it into the bite .ofthe 'rollers As the advancing edge, of the napkin is gripped by theserollers the blade-arm 47 begins its initial movement forcing` the tailend of the napkin from engagement with .the feedingr `tapes.l Inasniuchas the speed ofthe rollers 4ta-49 is less than the speed of the rollersQlf, the advancin napkin will reach t e' lbite of the rollers edge of afollowing 48449 at. the, moment, thepreceding napkin has been fedtherebetween about 'tivo-thirdi-;

of il's length so ihat the rail end of one nap'- cated ab p the leaves.ll and (i, Fig. il) 4or' thema/weding nap f'l`he paper in positivelyfolded through he instrumentaliisy ofj'ptheunu'lulating; ar nj'. fingers3l). and i which alter? erease( napkin.` ffiy yreason ment oi le.iin-gers in tlieictracting move# ment the) rest. np'onihe if'oldp;`ofihe napkin A K K rd the month PW I: ll-IOld" Pili rs ,ffpresser feet,hol low, 'n prig'l'i/ts which are @n ided "fsecured Yto the fra me oiEtherme,

25 outer em i adapted fo nd l4,-9.` kThe presser feet are andldured'. Yas io receive. and hold the folds ofthe napkins ai; thei'i vare releasedhy The folcli'ng'-'iig'ers.- 1

In usin the machine for folding paper towels, W ielnas before stated,have only transversefolds.Il detach the superposed frame G7 whichsupports the roller har (ill, and folding horn 68, and also remove theinitial ereasinfr rollers 57. The roll of' paper is; supported brackets76 secured to the siandards B, ilie web being assed upwardly and over alroller 77 suii'ah y `supported h v laterally rojectinp; hraekets 78, andhenee to the ro lers 22, 23. From this point .the operation is the same,as has heen deserihed with reference to the foldingy of the napkins.

For the purposeof aidin in packaging, the napkins; in various sized ots.{.provide a marking mechanism 'by which every iftieth napkin 'is markedsoi/hatihe operaiive may take out,` the desired number from the hoppenwithout having to stop Iio count them. lhis mechanism includes a wheel70 carry` ing a marker 7l, the Wheel being' driven. step ,rlofpreventbackward.:

idf"laterally'extendingy arms rhe- `\.\"luch carry` rollers which :ue-A

pa irs 'on leach side voi the path of Il and-are operiiiedrhythe' rams.-,c iiseld toheinern'iittently raised. 'Said-.roll, a n recliproeaiingelemeni fer/inor- :ingthe tzailenfd ofoneyknapkin from 4ihe path of feedoff t'hejicl'lowing" "napkin to permit?? hy step through a paWl andratchet conneetowel lengths. a hoppermeans for feeding theniipkins intosaid hopper at a speed less than the speed of the initial i'eed irornsaid roll, means for moving the, i'ail end ol one napkin from the pathofJfeed ci the lfolloiv ing napkin yto'permij4 the 'advancing end of thelatter to overlap l'he rail end of lzliefpreending napkin, 1and meansli'or .folding diey articles alongr their transverse'creaeesiamlvftncking the, advancing end ein napkin,v

Within `the. folds of the napkin ahead. r

In a machine of .the class -described,Y

means r'orifeeding va web of paper fromy a roll, means for transverselycrezning the web, f

means for severing the weh info napkin or `towel lengll'is, a hepper,meansI for 'feeding f the'napkins inio said hopper ai a 'speed jleSsthan the speed 'of the initial feed from said roll` a reciprocating"eleu'x'ent for Findingthe' inthe folds ofthe napkin ahead.

rolhmeans for iransvereeiy creasing the web,`

towel lengths,- ahopper. `means for' feeding ihe napkins into saidhopper at' a speed--'"'- less; than ihe speed of ,the iniiliial y*feedVfrom varticles; along their transverse creailges and ingv the.advancingf end oi a. napkin iviih-l 3,. VAln a machine of therinse'descrihedf` means for'feedinga `weh orpaper from av j 9.0 n meansonseveringlhen'eb into napkin orA f theiry alternare@ ing end of `anapkin within the folds of the p 4. In a machine of the class described,means for feeding a web of paper from e roll, n'ieans for transverselycreasing the web, i'neans for eeveringr the web into napkin or towellengths;- ak hoppen` means for feeding the napkins info said hopper at aspeed less than the speed of thenmhal feed 'from said roll, means formovingr the tail end of one napkin from the path of feed of thefollowingnapkin to perrnii, ihe advancing end of the iaier io overlap l'he railend of izhe preceding napkin, blades for foldingr ille articles alongItheir alernae transverse creases and ing ihe advancinga end of a napkinwithin the foldsof the napkin ahead, and means `for alternaielvreciprocating said blades.

5. n a: machine of the class described.,

means-i for, feedinga web of paper from a roll, means for ransverselycreasing the web, means for severing the web inonapkin ortowel lengths,a hopper. means for feeding the napkins-into said hopper at a Speed leasing napkin to permit the advancing end of the latter to overlap the tailend of Ithe prei -means for. effecting an undulating recipro- ,cationofA said-blades. 6.' InK a machine fof. the class descrlbed,

`means for feeding avveb of paper from a roll, .means for transverselycreasing the web, means for severing the web into nap`- kin .or towellengthsx a hopper, means for feeding the napkins lnto said hopper at aspeed less than the speed of the initial feed fromsaid roll, means formoving the tail end vof one napkin fqni the path of feed of thefollowing napkin to permit the advancing end of the latter to overlapthe tailv endofthe preceding napkin, means for foldthe,I articles alongtheir transverse creases v within the folds of the napkin ahead,andandtu'cking the advancingend of a napkin presserfeet for holding thefolded napkins in said hopper.

7, In a machine .of the class described,

means for feeding a Web of paper 'from a roll, means for transverselycreasing the web, f means for severing the `Web into napkin or towellengths,4 a hopper, means for feeding the napkins into said hopper atva-speed less than ,thefspeed theinitialfeed from said roll,` means formoving the tail end of one napkin vfrom the pathof feed of the followingnapkin to permit the advancing end of the latter to Foverlap' the tailend of the preceding napkin, means for folding the articles along theitransverse creases and tucking the advancing end of a napkin within thefolds ofthe napkin ahead, and intermittently operated presser feetforholding th'e folded napkins in said hopper.

8. In a machine of the class described, rollers for feeding a web ofpaper from a roll, means carried by said rollers for transverselycreasing the web, coperating cutting members for severingthe web intonapkin or towel lengths, a hopper, rollers for feeding the napkins intosaid hopper at a speed lessthan the speed of the initial `feed rollers,a blade for moving the tail endv of one napkin from the path of feed ofthe following napkin to permit the advancing end of the latter 'tooverlap'the tail end of the preceding napkin, means for reciprocating,said blade, and means for effecting a folding of said napkins alongtheir alternate ftransverse creases and tucking the advancing end of anapkin within the 'folds of the napkin ahead. I if f In testimonywhereof, I have signed this specification.

OLIVER E. TEALL.

